AT406122B - Modification of laser diodes for zoom effect radiation - Google Patents

Abstract

The invention concerns a practical modification of existing laser diode systems in order to permit both therapeutically desirable laser light radiation which is specifically targeted (for example in body cavities and their mucous membranes), and also stepless and otherwise only technically very complex radiation (devices with a multiplicity of laser diodes) of large areas of the body. <IMAGE>

Description

AT 406 122 B

Description:

The invention relates to an attachment for therapeutic lasers, for irradiating, for example, acupuncture points, external or internal surfaces such as e.g. Ear etc.

State of the art:

The international publication WP 90/00420, published on January 25, 1990 (January 25, 1990), filed by ROWLAND ADRIAN, shows a hemispherical device with a diffuse reflector, which is used to convert the light emitted by a light source into diffuse light transform. U.S. Patent No. 4,480,168 (CIELO), published October 30, 1984 (October 30, 1984), shows a tubular device for coupling to lasers to irradiate a surface.

However, either a lens system, a beam splitter or some other optical device is integrated in this tubular system.

A further cavity is integrated in this tubular device, on the inner surfaces of which the radiation is reflected in order to bring it back in the desired direction. The inner, reflective surface is coated with gold-plated particles, so that the light becomes softer. The disadvantage of this device is the complicated structure.

The aim of the invention is to construct a simple system without a lens system, through which a therapeutic laser beam is focused or focused on a point on the skin.

This is achieved in that a tubular sleeve is provided, which can be put over the laser, which can be moved manually or mechanically, so that the distance between the laser and the surface to be irradiated can be changed, the interior of the sleeve having a high-gloss design, so that the laser light between its radiation in the laser and the impact on the surface to be irradiated is reflected several times, furthermore a translucent attachment in the form of a light-diffuse hood or a flexible piece of hose is provided, which can be plugged onto the tubular sleeve, which makes the emerging laser light diffuse and deflects in the radial direction, so that radiation from inner surfaces such as Ear, vagina etc.

Laser (approx. 1-250 milliwatt output) is application-technically known as a "light pointer". or also known for therapeutic use (acupuncture, for example) in different devices, requires an electrical diode, which emits light in this spectrum, together with an electronic control, for the desired radiation in the electromagnetic waveband between 632.8 and about 900 nm.

In order to enable the light radiation to be coherent, usually with a beam diameter of 1 millimeter or less, an optical converging lens is placed in front of the diode in a known manner.

Without an optical lens placed in front of the laser diode, the radiation would not be coherently round, but rather as a non-round, bar-like light phenomenon if the radiation strikes a reflecting surface.

This effect is therapeutically undesirable because it is energetically lossy and cannot be concentrated in a bundle.

The purpose of the present invention is to be able to remedy this deficiency in therapeutic LASER use in order to enable laser light radiation (Figure II) that the laser diode module (mostly used as or controlled module, often used as a laser pen, etc.), no optical radiation collecting lens is placed in front of or removed.

However, in order to achieve a "zoom effect" without an optical lens, In order to achieve the emerging laser radiation (usually at an angle of 13 °), a reflector is placed in front (Fig. l, ll) which, with a high gloss inside, does not concentrate the radiation emitted by the laser diode, but emits it as a conical laser light radiation (Fig. II).

The infinitely adjustable focal length is achieved in a simple manner by integrating the device according to the invention (FIGS. 1, A, B, C) in the form of a module or as a system in any device for therapeutic applications, at any distance from an opaque light or light-absorbing projection surface, body skin (for example and primarily) is brought.

In this way the so-called “zoom effect”, which is often desired therapeutically, is obtained effortlessly by the therapist handling the device. A non-manual, but also mechanical distance adjustment - radiation emission - projection surface - is also possible using appropriate aids. The fact that with the distance up to the 2nd

Claims (2)

AT 406 1 22 B Impact of the energy (5 mW, for example, common) decreases quadratically, is physically justified in a known manner. The device according to the invention in all feasible types of application enables the “zooming effect” to be canceled. by attaching or putting on a translucent hood or a flexible translucent hose piece made of plastic material or glass, a radial emission of the laser light, which can be of certain therapeutic importance for internal use in body cavities (ear, nose, vagina, anus). (Figure III) Figure 1 shows the "Zoom LASER module" according to the invention. in cross section and schematically. Number 1 = laser diode with integrated control in a known manner, 2 = opening on the laser diode capsule for radiation according to the properties of the laser diode, 3 = electrical connections for supply, 4 = the tubular, metallic sleeve placed on the laser diode holder, FIG. 2 shows a cross section and top view according to FIG. 1 in number 5 = metallic holder of the laser diode, 6 = Opening for emerging radiation emission without a superior optical lens, 7 = the tubular sleeve (FIG. 1, number 4) FIG. 3 shows, for example, a “laser zoom module” according to the invention. in natural size and the smallest possible dimensions. FIG. 4 shows schematically and in principle the laser radiation made possible by the device according to the invention. It shows a mechanically mounted laser diode. Number 1 = the laser module in the housing, 8 = emission of the radiation emitting from the diode, 9 = the attached sleeve, 10 = schematic reflection Figure 5 shows schematically the spherical radiation emitting at the exit (opening), optically infinitely infinite. Number 11 = symbolically the circular circumference depending on the distance of the emission on the radiation striking a material surface (2). 12 = symbolically a material surface (skin of the body, for example), on which the radiation hits and energetically reaches its maximum. Claims: 1. Attachment for therapeutic lasers, for the radiation of, for example, acupuncture points, external or internal surfaces such as e.g. Ear, etc., characterized in that a tubular sleeve is provided which can be slipped over the laser, which can be moved manually or mechanically, so that the distance between the laser and the surface to be irradiated can be changed, the interior of the sleeve having a high-gloss design , so that the laser light between its radiation in the laser and the impact on the surface to be irradiated is reflected several times, furthermore a translucent attachment in the form of a light-diffuse hood or a flexible piece of hose is provided, which can be plugged onto the tubular sleeve, which contains the emerging laser light diffuses and in the radial direction thus deflects radiation from inner surfaces such as Ear, vagina etc. is possible with 2 sheets of drawings 3